Principal Engineer (L5)

At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences.

Our dedication to remote-first work, and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands.

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We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions!

Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings.

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Join the team as our next Principal Engineer (L5), Twilio’s Segment team

As a Principal Engineer on the Twilio Segment Data platform/ pipelines team, you’ll build and scale systems that process several hundred thousands of data points per second. You will lead the development of high-scale ingestion and data processing systems You'll guide the team in designing, operating and maintaining complex distributed systems, ensuring reliability, performance, and cost-efficiency while querying petabytes of data for our customer data platform (CDP).

In this role, you’ll:

• Own and deliver robust, high-scale routing experiences for the Data platform/ pipelines team for Twilio Segment.
• Architect and operate always-available, complex distributed systems in cloud environments.
• Guide technical decisions, articulating trade-offs between cost, performance, and reliability.
• Translate complex technical strategies into actionable plans for diverse stakeholders, including Product Managers and Architects

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Hands-on experience with high-scale messaging/streaming systems and processing engines (several thousand events/sec).
• Excellent abilities in high level service design -- modeling interfaces and internals in a properly modular, composable, and extensible way.
• Expert programming experience in Go or similar object-oriented languages.
• Demonstrated experience identifying, prototyping, and deploying GenAI/LLM solutions to solve real-world engineering or data processing challenges.
• Technical depth in distributed systems, high-scale ingestion, and cloud-native architecture.
• Excellent communication, problem-solving, and operational excellence skills.

Nice to have

• Proficiency with datastores, distributed caching, and container technologies (Docker/Kubernetes).
• Experience with modern CI/CD pipelines and observability tools (Datadog, Grafana, Prometheus).
• Familiarity with AI/ML technologies.
• Experience managing and operating AWS infrastructure
• Experience working in a geographically distributed team.

• Working at Twilio offers many benefits, including competitive pay, generous time off, ample parental and wellness leave, healthcare, a retirement savings program, and much more. Offerings vary by location.